Function which

Scripts/Developer Base/Free Internet.py:80–87

(name: str)

def which(name: str) -> Optional[str]:
    for p in os.environ.get("PATH", "").split(os.pathsep):
        if not p:
            continue
        c = Path(p) / name
        if c.exists() and os.access(str(c), os.X_OK):
            return str(c)
    return None


def is_termux() -> bool: